80220720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{2129}}^1$

素因数の和:2302

約数の個数: 80

約数和(自身を含む): 250385760

約数和(自身を除く): 170165040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 157, 240, 314, 471, 628, 785, 942, 1256, 1570, 1884, 2129, 2355, 2512, 3140, 3768, 4258, 4710, 6280, 6387, 7536, 8516, 9420, 10645, 12560, 12774, 17032, 18840, 21290, 25548, 31935, 34064, 37680, 42580, 51096, 63870, 85160, 102192, 127740, 170320, 255480, 334253, 510960, 668506, 1002759, 1337012, 1671265, 2005518, 2674024, 3342530, 4011036, 5013795, 5348048, 6685060, 8022072, 10027590, 13370120, 16044144, 20055180, 26740240, 40110360, 80220720]

約数ペア:

[(1, 80220720), (2, 40110360), (3, 26740240), (4, 20055180), (5, 16044144), (6, 13370120), (8, 10027590), (10, 8022072), (12, 6685060), (15, 5348048), (16, 5013795), (20, 4011036), (24, 3342530), (30, 2674024), (40, 2005518), (48, 1671265), (60, 1337012), (80, 1002759), (120, 668506), (157, 510960), (240, 334253), (314, 255480), (471, 170320), (628, 127740), (785, 102192), (942, 85160), (1256, 63870), (1570, 51096), (1884, 42580), (2129, 37680), (2355, 34064), (2512, 31935), (3140, 25548), (3768, 21290), (4258, 18840), (4710, 17032), (6280, 12774), (6387, 12560), (7536, 10645), (8516, 9420)]